Unable to make connection

Hello,
I downloaded and installed current version this morning. After the update, I am no longer able to connect to my website on Yahoo webhosting service. I made no changes to any of the options in SmartFTP. I am supplying correct ftp address, usercode and password. Any idea on why I'm getting message "No connection could be made because the target machine actively refused it. Connection closed." on ftp."mydomainname".com address that is hosted by Yahoo. Thanks!
OmaSteak